50 Sherwood Heights Drive – Functional Stormwater Management Report · New · 2022-03-03
Each category awards a maximum percentage of the annual stormwater charge as credit. Evidence is extracted directly from the source PDF — no manual review.
| Storm event | Pre-dev (m3/s) | Post-dev (m3/s) | Δ |
|---|---|---|---|
| 2-yr | 0.177 | 0.081 | −54% |
| 5-yr | 0.368 | 0.118 | −68% |
| 10-yr | 0.482 | 0.134 | −72% |
| 25-yr | 0.684 | 0.156 | −77% |
| 50-yr | 0.835 | 0.172 | −79% |
| 100-yr | 0.989 | 0.186 | −81% |
Upper pond. Active storage ~2,200 m3. Outlet structure: orifice 0.2 m x 0.2 m. Permanent pool 1,300 m3. Live storage 2,500 m3 (from design sheet, noting some discrepancy with text stating ~2,200 m3 active). Weir at elevation 129.00 m, 0.1 m height x 0.5 m length.
Lower pond. Active storage ~900 m3. Staged outlet: low flow orifice 0.1 m x 0.2 m at invert 119.00 m; high flow orifice 0.2 m x 0.5 m at invert 119.50 m. Permanent pool 400 m3. Live storage 1,100 m3. Weir at elevation 120.00 m.
Capture of first 5 mm of runoff from rooftop areas; overflow into storm sewer. Recommended for detailed design. Annual capture ~16,744 m3 across 46 storm events.
Drainage swale redirected around development along Sherwood Heights Drive.
How to read this page. Every value above was extracted from the source PDF by the PARCELFLOW report parser, which combines a layout-robust template detector with a validated extraction stage tuned to Ontario Functional Servicing and Stormwater Management reports. The four-category scorecard maps the parsed evidence onto Mississauga's credit bylaw. Numbers are estimates — engineering review still required before submitting a formal credit application to the City.